I want to build myself a dual suspension bike and I am kind of attracted to Igus bushings for pivots. Anyone had used them wiith succes like Turner used to?
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As long as you can seal them well they should work. I use an Igus bush (shock hardware actually) for my Horst Pivot and they work really well and I have zero issue with them. That said that joint only articulates 4.3 degrees. That sort of movement chews bearings out. The main pivot only goes through about 15 degrees which so far has proved to be ok on bearing life. Ball/roller bearings font really like small oscillating movement. They much prefer bigger gross movements. So bikes are a good candidate for Igus or plain bearings. They take more engineering to get right but you arent wrong to choose them for a platform design.
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Many brands have tried bushings in the suspension linkage with varying levels of success. Generally speaking they should be well suited for that application (high radial loads, low rotational speeds and articulation) but they are very sensitive to contamination, misalignment and surface condition. So if you can seal them well and address the other topics, they can work.
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So sealing and thight tolerances are the keys ro succes.
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